How to Use the Loyverse MCP in Vercel AI SDK

Q: Can the Vercel AI SDK filter Loyverse receipts by date?

Yes, the llistreceipts tool accepts start and end date parameters. You just pass these as arguments from your frontend input fields.

Q: What customer data does the Loyverse MCP server expose to the Vercel AI SDK?

The server only provides the fields returned by llistcustomers, such as names and contact info. Your sensitive POS credentials never leave the Vercel environment.

Pull live Loyverse POS data directly into your Vercel AI SDK frontends for real-time inventory and sales tracking.

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Connect Loyverse MCP to Vercel AI SDK

Create your Vinkius account to connect Loyverse to Vercel AI SDK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Loyverse with Vercel AI SDK

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Real-time inventory data access

Feed your UI live stock levels by querying `l_list_items` directly through your edge functions. Stop relying on static imports and display actual shelf counts to your end users immediately. Your Vercel AI SDK implementation handles the stream automatically. Users see the data populate as the AI client fetches it from your POS account.

Customer record lookup

Query your entire database using `l_list_customers` to pull contact details during active chat sessions. This gives your interface immediate context for loyalty programs or order history inquiries. Keep your logic clean by mapping these results to your React or Svelte components. The SDK handles the heavy lifting while you focus on the UI layout.

Transaction history streaming

Retrieve past sales logs with `l_list_receipts` to show order trends within your dashboard. You can filter by date ranges to isolate specific performance windows for your store managers. Since this MCP server is optimized for streaming, you won't see those annoying loading spinners. Data arrives in chunks, creating a snappy experience for your customers.

Setup guide

Set up Loyverse MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all Loyverse tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent Loyverse transactions",
});

console.log(text);
await mcpClient.close();

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Common questions about Loyverse MCP in Vercel AI SDK

Install the MCP client package via npm and initialize it with your server endpoint. You then pass the tool definitions directly into your generateText function.

Yes, the `l_list_receipts` tool accepts start and end date parameters. You just pass these as arguments from your frontend input fields.

It does. You can include limit and offset parameters when calling `l_list_items` to manage large inventory lists without crashing your browser.

Security is handled at the transport layer using your unique endpoint token. Your AI client only gets the specific data you allow through the tool definitions.

The server only provides the fields returned by `l_list_customers`, such as names and contact info. Your sensitive POS credentials never leave the Vercel environment.

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